Seismosoft | Earthquake Engineering Solutions

Yes, it did converge, and the methodology that i used is Al Atik and Abrahamson. When i changed the method to Hancock the result converge and the original spectrum fit perfectly. Could it be that the acelerograms were previously corrected by base line and the Al Atik and Abrahamson method is causing ...

The problem i have is about the spectral matching in periods after 1 seconds. When i used the programa the matched spectrum does not fit with the target spectrum and it supposed that the match sould be done in the range of 0.06 to 4 seconds. What could be the reason of that error ?

I attached the ...